Our NR50 outdoor model is our newest and most affordable model for apartments, condminiums and townhouses with 1-2 showers. NR50 outdoor morel is the way to upgrade your lifestyle to continuous hot water when you need it. This compact model is perfect in the southeastern region of the USA.

Features:

• Outdoor model - NO VENTING REQUIRED - No expensive venting required
• 12 year warranty - Longer coverage than competition, 12 years on heat exchanger, 5 years on parts, 1 year labor
• Optional Freezing protection kit - Freezing protection kit is sold separately
• 0.5 GPM min. flow activation - Capable to handle higher incoming water temperature than current residential series
• 1/2" Gas fitting - NO NEED TO UPSIZE - No need to upgrade gas line if pipe length is less than 20' (Natural Gas) from meter or 40' (Propane) from gas tank
• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Standard burner - High performance single flame burner
  
• Fully modulating burner - Automatically adjusts burner level accordingly
• Turbo Flow - Up to 5.0 GPM @ 30 degree temperature rise (4.2 GPM @ 45 degree rise)
• Direct ignition - No standby pilot light
• Thermal fuse - Automatic overheat protection system
  
• Resin coated PC board - Increases durability and protection from elements
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency
• Resin coated PC board - Increases durability and protection from elements

Most Advanced Green Design: The NR83 demonstrates Noritz's commitment to being the tankless leader. With the NR83 Noritz shows its dedication to reduce environmental burdens and atmospheric pollution.

The NR83-DVC is the best 180,000 btuh concentric model in the category with many industry-first features. Equipped with a commercial-grade heat exchanger and green Eco-Burner, the NR83 is the perfect mix of professional power and environmental consciousness.

Features:

• Outdoor model - NO VENTING REQUIRED - No expensive venting required
• 12 year warranty - Longer coverage than competition, 12 years on heat exchanger, 5 years on parts, 1 year labor
• Optional Freezing protection kit - Freezing protection kit is sold separately
• 0.5 GPM min. flow activation - Capable to handle higher incoming water temperature than current residential series
• 1/2" Gas fitting - NO NEED TO UPSIZE - No need to upgrade gas line if pipe length is less than 20' (Natural Gas) from meter or 40' (Propane) from gas tank
• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Standard burner - High performance single flame burner
  
• Fully modulating burner - Automatically adjusts burner level accordingly
• Turbo Flow - Up to 5.0 GPM @ 30 degree temperature rise (4.2 GPM @ 45 degree rise)
• Direct ignition - No standby pilot light
• Thermal fuse - Automatic overheat protection system
  
• Resin coated PC board - Increases durability and protection from elements
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency
• Resin coated PC board - Increases durability and protection from elements

Noritz is the first tankless water heater manufacturer to introduce tankless hydronic boilers.  The NH Series consists of two models, the NH199-DV and NH150-DV.  Both of these direct vent models provide quiet and constant heat to your home by providing hot water to applications such as cast-iron radiators and baseboards.  These units share the same features as with our other heaters - space saving, energy efficient, and environmentally friendly.  They are capable of offering nine temperature settings and is fully-modulating, meaning energy is used efficiently.  These tankless hydronic boilers are significantly smaller in size, weighing in at only 66 pounds vs conventional boilers' which typically weigh more than 300 pounds, giving your home more space to enjoy.

Features:

• Fully modulating burner - Automatically adjusts burner level accordingly.
• Dual temperature controls - for indirect domestic water heating (temp. priority 1) and hydronic heating (temp. priority 2).
• Available in Natural Gas (NG) and Propane (LP) models only.
• Thermal Efficiency: 83% (NG), 82.8% (LP)
• Dual flame burner - Noritz exclusive!  Minimizes temperature fluctuations.
• ASME certified.

For our luxury line, we have the 931 series which can provide endless hot water for up to 4+ showers.  And with its Quick-Connect system, two units can be linked together to meet the high demand of today’s luxury homes.  To accommodate the higher flow rate demand, these units have a dual flame burner, a redesigned heat exchanger and 25% thicker copper piping.  No other tankless water heater in its class can beat its performance, dependability, and quality.  Built-in features include safety lock-out, freeze protection, and high elevation adjustment. 

Features:

• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Dual flame burner - Noritz exclusive!  Minimizes temperature fluctuations.
• Fully modulating - Automatically adjusts burner level accordingly.
• Turbo Flow - Up to 11.1 GPM @ 35 degree temperature rise (9.3 GPM @ 45 degree rise).
• Quick Connect - Doubles the output by connecting two identical heaters.
• Direct ignition - No standby pilot light.
• Thermal fuse - Automatic overheat protection system.
  
• Resin coated PC board - Increases durability and protection from elements.
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
• Fully modulating - Automatically adjusts burner level accordingly.
• Commercial grade heat exchanger - 25% thicker piping than our competition.

Noritz is proud to introduce our most efficient tankless heaters, the next generation in tankless technology - condensing heaters.  This innovation utilizes a dual heat exchanger, a fusion of stainless steel and copper heat exchangers.  The 100% stainless steel component captures the residual heat from the exhaust temperature to preheat the incoming water before it runs through the main copper heat exchanger.  This results in dramatic reduction of carbon dioxide and increases the heater's efficiency level to over 93%!  Another benefit of this technology is lower exhaust temperatures, which means less costly PVC can be used for its venting. A PVC adapter is built into the heater for easy installation.

Features:

• Condensing technology - The most advanced Noritz unit, 93% efficiency level!
• Combi-system set-up - Open loop system functionality for both potable water heating and space heating combination system.
• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Dual flame burner - Noritz exclusive!  Minimizes temperature fluctuations.
• Fully modulating - Automatically adjusts burner level accordingly.
• Dual heat exchanger - 100% stainless steel corrosion resistant heat exchanger fused with a commercial grade copper heat exchanger.
  
• Turbo Flow - Up to 11.1 GPM @ 35 degree temperature rise (8.4 GPM @ 45 degree rise).
• Quick Connect - Doubles output by connecting 2 identical units with a single cable.
• Multi System - Up to 24 units can be linked and operated by a single system controller.
• Direct ignition - No standby pilot light.
• Thermal fuse - Automatic overheat protection system.
  
• Resin coated PC board - Increases durability and protection from elements.
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
• Neutralizer included - Built-in neutralizing system for condensation.
• Commercial grade heat exchanger - 25% thicker piping than our competition.

Noritz is proud to introduce our most efficient tankless heaters, the next generation in tankless technology - condensing heaters.  This innovation utilizes a dual heat exchanger, a fusion of stainless steel and copper heat exchangers.  The 100% stainless steel component captures the residual heat from the exhaust temperature to preheat the incoming water before it runs through the main copper heat exchanger.  This results in dramatic reduction of carbon dioxide and increases the heater's efficiency level to over 93%!  Another benefit of this technology is lower exhaust temperatures, which means less costly PVC can be used for its venting.

Features:

• Condensing technology - The most advanced Noritz unit, 93% efficiency level!
• Combi-system set-up - Open loop system functionality for both potable water heating and space heating combination system.
• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Dual flame burner - Noritz exclusive!  Minimizes temperature fluctuations.
• Fully modulating - Automatically adjusts burner level accordingly.
• Dual heat exchanger - 100% stainless steel corrosion resistant heat exchanger fused with a commercial grade copper heat exchanger.
  
• Turbo Flow - Up to 11.1 GPM @ 35 degree temperature rise (8.4 GPM @ 45 degree rise).
• Quick Connect - Doubles output by connecting 2 identical units with a single cable.
• Multi System - Up to 24 units can be linked and operated by a single system controller.
• Direct ignition - No standby pilot light.
• Thermal fuse - Automatic overheat protection system.
  
• Resin coated PC board - Increases durability and protection from elements.
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
• Neutralizer included - Built-in neutralizing system for condensation.
• Commercial grade heat exchanger - 25% thicker piping than our competition.

With more power than any tankless water heater in its class, the 751 series is ideal for mid-size homes with up to 4 showers.  Built-in features include safety lock-out, freeze protection, and high elevation adjustment.

Features:

• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Dual flame burner - Noritz exclusive!  Minimizes temperature fluctuations.
• Fully modulating - Automatically adjusts burner level accordingly.
• Turbo Flow - Up to 9.8 GPM @ 35 degree temperature rise (7.5 GPM @ 45 degree rise).
• Quick Connect - Doubles the output by connecting two identical heaters.
• Direct ignition - No standby pilot light.
• Thermal fuse - Automatic overheat protection system.
  
• Resin coated PC board - Increases durability and protection from elements.
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
• Commercial grade heat exchanger - 25% thicker piping than our competition.

Our 631 series is perfect for homes with 1-3 showers.  When properly sized, they provide an endless supply of hot water to an entire home.  With state-of-the-art gas combustion technology, Noritz burners maximize output and provide temperature stability while maintaining low emissions.  Built-in features include safety lock-out, freeze protection, and high elevation adjustment. 

Features:

• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Standard burner - High performance single flame burner.
• Fully modulating burner - Automatically adjusts burner level accordingly.
• Turbo Flow - Up to 7.1 GPM @ 35 degree temperature rise (6.3 GPM @ 45 degree rise).
• Direct ignition - No standby pilot light.
• Thermal fuse - Automatic overheat protection system.
  
• Resin coated PC board - Increases durability and protection from elements.
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
• Resin coated PC board - Increases durability and protection from elements.

Our 531 series is perfect for apartments, condominiums and townhouses with 1-2 showers.  When properly sized, they provide an endless supply of hot water and are designed to be more efficient than traditional tank-type water heaters.  These compact heaters will save space without compromising power. Built-in features include safety lock-out, freeze protection, and high elevation adjustment.

Features:

• Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
• Standard burner - High performance single flame burner.
  
• Fully modulating burner - Automatically adjusts burner level accordingly.
• Turbo Flow - Up to 6.6 GPM @ 35 degree temperature rise (5.3 GPM @ 45 degree rise).
• Direct ignition - No standby pilot light.
• Thermal fuse - Automatic overheat protection system.
  
• Resin coated PC board - Increases durability and protection from elements.
• Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.
• Resin coated PC board - Increases durability and protection from elements.